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连续/脉冲复合体制高功率固体激光技术研究
引用本文:刘磊,王文涛,王超,王钢,刘洋,贾佑权,李宁,吕坤鹏,陈露.连续/脉冲复合体制高功率固体激光技术研究[J].强激光与粒子束,2022,34(3):031007-1-031007-6.
作者姓名:刘磊  王文涛  王超  王钢  刘洋  贾佑权  李宁  吕坤鹏  陈露
作者单位:中国电子科技集团公司第十一研究所 固体激光技术重点实验室,北京 100015
摘    要:常规高功率激光器以连续或者长脉冲方式工作,与物质作用主要是依靠单一“加热”模式,针对其对复杂目标作用能力有限的问题, 提出一种连续和脉冲激光同时输出,脉宽、重频可调的新体制高功率激光技术,激光放大链路以特殊时域模式工作,即高重频脉冲与连续运转同时输出,在重频10 kHz时,实现输出功率4800 W,其中连续激光功率3600 W,脉冲激光功率1200 W,脉冲宽度为3.6 ns;在重频100 kHz时,实现输出功率4920 W,其中连续激光功率3100 W,脉冲激光功率1820 W,脉冲宽度为7 ns,光束质量4.8倍衍射极限 。

关 键 词:连续/脉冲    时域    高功率激光    激光放大链路    高重频
收稿时间:2021-07-15

High power solid state laser operating in continuous / pulse composite mode
Institution:Science and Technology on Solid-State Laser Laboratory, North China Research Institute of Electro Optics, Beijing 100015, China
Abstract:Conventional high-power lasers operate in either continuous wave or long pulse mode. They interact with materials mainly through heating, whose effects are very limited when working with complex targets. We propose a novel high-power laser technology based on the combinations of continuous and pulse lasers with adjustable pulse widths and repetition frequencies. Such a “heating/shock” function can be used to improve the effect of high-power laser by aiming the best time-domain eigenvalues of melting and gasification of various target materials. We have achieved output power of 4800 W with 3600 W from continuous wave operation and 1200 W from pulsed operation with repetition rate of 10 kHz and pulse width of 3.6 ns. When the repetition rate is increased to 100 Hz, the resultant output power of the 7 ns pulsed laser is 1820 W, while the power of the continuous laser is 3100 W, and the beam quality is 4.8 times of the diffraction limit.
Keywords:
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